[PATCH 0/2] arm64: dts: agilex5: add support for debug daughter card

[PATCH 0/2] arm64: dts: agilex5: add support for debug daughter card

[Adrian Ng Ho Yin]

The Agilex5 SoCDK supports an optional debug daughter card that requires
a dedicated device tree variant due to differences in peripheral
connectivity compared to the standard SoCDK configuration.

When the debug daughter card is fitted:
  - gpio0 and gmac2 are disabled
  - gmac0 is enabled with RGMII PHY connectivity
  - spi0 is enabled with a <device> peripheral at chip select 0
  - The HPS LED is rewired from gpio0/porta to gpio1/portb

The new DTS inherits from socfpga_agilex5_socdk.dts and overrides only
the nodes that differ, keeping the delta minimal.

Adrian Ng Ho Yin (2):
  dt-bindings: altera: add compatible for agilex5 socdk debug daughter
    card
  arm64: dts: agilex5: add support for debug daughter card

 .../devicetree/bindings/arm/altera.yaml       |  1 +
 arch/arm64/boot/dts/intel/Makefile            |  1 +
 .../dts/intel/socfpga_agilex5_socdk_debug.dts | 50 +++++++++++++++++++
 3 files changed, 52 insertions(+)
 create mode 100644 arch/arm64/boot/dts/intel/socfpga_agilex5_socdk_debug.dts

-- 
2.49.GIT

[PATCH 1/2] dt-bindings: altera: add compatible for agilex5 socdk debug daughter card

[Adrian Ng Ho Yin]

Agilex5 devkit supports a debug daughter card that inherits the
configurations from socdk but disables gpio0 and gmac2 and enables gmac0
and spi0.

Signed-off-by: Adrian Ng Ho Yin <adrian.ho.yin.ng@altera.com>
---
 Documentation/devicetree/bindings/arm/altera.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/arm/altera.yaml b/Documentation/devicetree/bindings/arm/altera.yaml
index 06513895a159..c17e3bf2b077 100644
--- a/Documentation/devicetree/bindings/arm/altera.yaml
+++ b/Documentation/devicetree/bindings/arm/altera.yaml
@@ -111,6 +111,7 @@ properties:
           - enum:
               - intel,socfpga-agilex5-socdk
               - intel,socfpga-agilex5-socdk-013b
+              - intel,socfpga-agilex5-socdk-debug
               - intel,socfpga-agilex5-socdk-modular
               - intel,socfpga-agilex5-socdk-nand
           - const: intel,socfpga-agilex5
-- 
2.49.GIT

[PATCH 2/2] arm64: dts: agilex5: add support for debug daughter card

[Adrian Ng Ho Yin]

Add a new dts for the Agilex 5 SoCDK when fitted with the debug daughter
card where several peripherals such as gpio0 and gmac2 are disabled while
gmac0 and spi0 are enabled hence requiring a separate device tree.

Signed-off-by: Niravkumar L Rabara <nirav.rabara@altera.com>
Signed-off-by: Adrian Ng Ho Yin <adrian.ho.yin.ng@altera.com>
---
 arch/arm64/boot/dts/intel/Makefile            |  1 +
 .../dts/intel/socfpga_agilex5_socdk_debug.dts | 50 +++++++++++++++++++
 2 files changed, 51 insertions(+)
 create mode 100644 arch/arm64/boot/dts/intel/socfpga_agilex5_socdk_debug.dts

diff --git a/arch/arm64/boot/dts/intel/Makefile b/arch/arm64/boot/dts/intel/Makefile
index 088a03b89c99..84982bf13ee5 100644
--- a/arch/arm64/boot/dts/intel/Makefile
+++ b/arch/arm64/boot/dts/intel/Makefile
@@ -6,6 +6,7 @@ dtb-$(CONFIG_ARCH_INTEL_SOCFPGA) += socfpga_agilex_n6000.dtb \
 				socfpga_agilex3_socdk.dtb \
 				socfpga_agilex5_socdk.dtb \
 				socfpga_agilex5_socdk_013b.dtb \
+				socfpga_agilex5_socdk_debug.dtb \
 				socfpga_agilex5_socdk_modular.dtb \
 				socfpga_agilex5_socdk_nand.dtb \
 				socfpga_agilex7m_socdk.dtb \
diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex5_socdk_debug.dts b/arch/arm64/boot/dts/intel/socfpga_agilex5_socdk_debug.dts
new file mode 100644
index 000000000000..3981a9e876b0
--- /dev/null
+++ b/arch/arm64/boot/dts/intel/socfpga_agilex5_socdk_debug.dts
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier:     GPL-2.0
+/*
+ * Copyright (C) 2026, Altera Corporation
+ */
+#include "socfpga_agilex5_socdk.dts"
+
+/ {
+	model = "SoCFPGA Agilex5 SoCDK - debug daughter card";
+	compatible = "intel,socfpga-agilex5-socdk-debug", "intel,socfpga-agilex5";
+
+	leds {
+		led-0 {
+			gpios = <&portb 12 GPIO_ACTIVE_HIGH>;
+		};
+	};
+};
+
+&gmac0 {
+	status = "okay";
+	phy-mode = "rgmii"; /* TX/RX clock delays provided by Agilex5 I/O hardware */
+	phy-handle = <&emac0_phy0>;
+
+	max-frame-size = <9000>;
+
+	mdio0 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "snps,dwmac-mdio";
+		emac0_phy0: ethernet-phy@0 {
+			reg = <0>;
+		};
+	};
+};
+
+&gmac2 {
+	status = "disabled";
+};
+
+&gpio0 {
+	status = "disabled";
+};
+
+&spi0 {
+	status = "okay";
+	spidev@0 {
+		compatible = "rohm,dh2228fv";
+		reg = <0>;
+		spi-max-frequency = <10000000>;
+	};
+};
-- 
2.49.GIT

Re: [PATCH 1/2] dt-bindings: altera: add compatible for agilex5 socdk debug daughter card

[Conor Dooley]

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Acked-by: Conor Dooley <conor.dooley@microchip.com>
pw-bot: not-applicable

[-- Attachment #2: signature.asc --]
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Re: [PATCH 0/2] arm64: dts: agilex5: add support for debug daughter card

[Dinh Nguyen]

On 5/8/26 05:57, Adrian Ng Ho Yin wrote:
> The Agilex5 SoCDK supports an optional debug daughter card that requires
> a dedicated device tree variant due to differences in peripheral
> connectivity compared to the standard SoCDK configuration.
> 
> When the debug daughter card is fitted:
>    - gpio0 and gmac2 are disabled
>    - gmac0 is enabled with RGMII PHY connectivity
>    - spi0 is enabled with a <device> peripheral at chip select 0
>    - The HPS LED is rewired from gpio0/porta to gpio1/portb
> 
> The new DTS inherits from socfpga_agilex5_socdk.dts and overrides only
> the nodes that differ, keeping the delta minimal.
> 
> Adrian Ng Ho Yin (2):
>    dt-bindings: altera: add compatible for agilex5 socdk debug daughter
>      card
>    arm64: dts: agilex5: add support for debug daughter card
> 

Applied!

Thanks,
Dinh